Blisters When You Walk Higher Miles. Walking 10 miles (over 3 hours), even if you are used to walking for six miles, is more of a challenge. You can do it, but most people are likely to develop blisters in new places. Shoes and gear that worked fine for two hours may not be ideal for four hours.
How the Aurora Borealis occur. The Northern Lights are caused by the interaction of the solar wind - a stream of charged particles escaping the Sun - and our planet's magnetic field and atmosphere.
The Northern Lights can appear at any time, but they usually grace the sky between 6 oâclock in the evening and 1 oâclock in the morning. 1  It is rare to see the Northern Lights before 18. 2  The highest frequency is around 22. 3  If you see the Northern Lights at 19.